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lib.php
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lib.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Library functions for messaging
*
* @copyright Luis Rodrigues
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package message
*/
require_once($CFG->libdir.'/eventslib.php');
define ('MESSAGE_SHORTLENGTH', 300);
define ('MESSAGE_WINDOW', true); // We are in a message window (so don't pop up a new one!)
define ('MESSAGE_DISCUSSION_WIDTH',600);
define ('MESSAGE_DISCUSSION_HEIGHT',500);
define ('MESSAGE_SHORTVIEW_LIMIT', 8);//the maximum number of messages to show on the short message history
define ('CONTACT_ID','id');
define('MESSAGE_HISTORY_SHORT',0);
define('MESSAGE_HISTORY_ALL',1);
//some constants used as function arguments. Just to make function calls a bit more understandable
define('IS_CONTACT',true);
define('IS_NOT_CONTACT',false);
define('IS_BLOCKED',true);
define('IS_NOT_BLOCKED',false);
define('VIEW_UNREAD_MESSAGES','unread');
define('VIEW_CONTACTS','contacts');
define('VIEW_BLOCKED','blockedusers');
define('VIEW_COURSE','course_');
define('VIEW_SEARCH','search');
define('SHOW_ACTION_LINKS_IN_CONTACT_LIST', true);
define('MESSAGE_SEARCH_MAX_RESULTS', 200);
define('MESSAGE_CONTACTS_PER_PAGE',10);
if (!isset($CFG->message_contacts_refresh)) { // Refresh the contacts list every 60 seconds
$CFG->message_contacts_refresh = 60;
}
if (!isset($CFG->message_chat_refresh)) { // Look for new comments every 5 seconds
$CFG->message_chat_refresh = 5;
}
if (!isset($CFG->message_offline_time)) {
$CFG->message_offline_time = 300;
}
function message_print_contact_selector($countunreadtotal, $usergroup, $user1, $user2, $blockedusers, $onlinecontacts, $offlinecontacts, $strangers, $showcontactactionlinks, $page=0) {
global $PAGE;
echo html_writer::start_tag('div', array('class'=>'contactselector mdl-align'));
//if 0 unread messages and they've requested unread messages then show contacts
if ($countunreadtotal==0 && $usergroup==VIEW_UNREAD_MESSAGES) {
$usergroup = VIEW_CONTACTS;
}
//if they have no blocked users and they've requested blocked users switch them over to contacts
if (count($blockedusers)==0 && $usergroup==VIEW_BLOCKED) {
$usergroup = VIEW_CONTACTS;
}
$onlyactivecourses = true;
$courses = enrol_get_users_courses($user1->id, $onlyactivecourses);
$coursecontexts = message_get_course_contexts($courses);//we need one of these again so holding on to them
$strunreadmessages = null;
if ($countunreadtotal>0) { //if there are unread messages
$strunreadmessages = get_string('unreadmessages','message', $countunreadtotal);
}
message_print_usergroup_selector($usergroup, $courses, $coursecontexts, $countunreadtotal, count($blockedusers), $strunreadmessages);
$refreshpage = false;
if ($usergroup==VIEW_UNREAD_MESSAGES) {
message_print_contacts($onlinecontacts, $offlinecontacts, $strangers, $refreshpage, $PAGE->url, 1, $showcontactactionlinks,$strunreadmessages, $user2);
} else if ($usergroup==VIEW_CONTACTS || $usergroup==VIEW_SEARCH) {
message_print_contacts($onlinecontacts, $offlinecontacts, $strangers, $refreshpage, $PAGE->url, 0, $showcontactactionlinks, $strunreadmessages, $user2);
} else if ($usergroup==VIEW_BLOCKED) {
message_print_blocked_users($blockedusers, $PAGE->url, $showcontactactionlinks, null, $user2);
} else if (substr($usergroup, 0, 7)==VIEW_COURSE) {
$courseidtoshow = intval(substr($usergroup, 7));
if (!empty($courseidtoshow)
&& array_key_exists($courseidtoshow, $coursecontexts)
&& has_capability('moodle/course:viewparticipants', $coursecontexts[$courseidtoshow])) {
message_print_participants($coursecontexts[$courseidtoshow], $courseidtoshow, $PAGE->url, $showcontactactionlinks, null, $page, $user2);
} else {
//shouldn't get here. User trying to access a course they're not in perhaps.
add_to_log(SITEID, 'message', 'view', 'index.php', $usergroup);
}
}
echo html_writer::start_tag('form', array('action'=>'index.php','method'=>'GET'));
echo html_writer::start_tag('fieldset');
$managebuttonclass = 'visible';
if ($usergroup==VIEW_SEARCH) {
$managebuttonclass = 'hiddenelement';
}
$strmanagecontacts = get_string('search','message');
echo html_writer::empty_tag('input', array('type'=>'hidden','name'=>'usergroup','value'=>VIEW_SEARCH));
echo html_writer::empty_tag('input', array('type'=>'submit','value'=>$strmanagecontacts,'class'=>$managebuttonclass));
echo html_writer::end_tag('fieldset');
echo html_writer::end_tag('form');
echo html_writer::end_tag('div');
}
function message_print_participants($context, $courseid, $contactselecturl=null, $showactionlinks=true, $titletodisplay=null, $page=0, $user2=null) {
global $DB, $USER, $PAGE, $OUTPUT;
$countparticipants = count_enrolled_users($context);
$participants = get_enrolled_users($context, '', 0, 'u.*', '', $page*MESSAGE_CONTACTS_PER_PAGE, MESSAGE_CONTACTS_PER_PAGE);
$pagingbar = new paging_bar($countparticipants, $page, MESSAGE_CONTACTS_PER_PAGE, $PAGE->url, 'page');
echo $OUTPUT->render($pagingbar);
echo '<table id="message_participants" class="boxaligncenter" cellspacing="2" cellpadding="0" border="0">';
if (!empty($titletodisplay)) {
echo "<tr><td colspan='3' class='heading'>$titletodisplay</td></tr>";
}
if (empty($titletodisplay)) {
echo '<tr><td colspan="3" class="heading">';
echo get_string('participants');
echo '</td></tr>';
}
//todo these need to come from somewhere if the course participants list is to show users with unread messages
$iscontact = true;
$isblocked = false;
foreach ($participants as $participant) {
if ($participant->id != $USER->id) {
$participant->messagecount = 0;//todo it would be nice if the course participant could report new messages
message_print_contactlist_user($participant, $iscontact, $isblocked, $contactselecturl, $showactionlinks, $user2);
}
}
//$participants->close();
echo '</table>';
}
function message_get_blocked_users($user1=null, &$user2=null) {
global $DB, $USER;
if (empty($user1)) {
$user1 = $USER;
}
if (!empty($user2)) {
$user2->isblocked = false;
}
$userfields = user_picture::fields('u', array('lastaccess'));
$blockeduserssql = "SELECT $userfields, COUNT(m.id) AS messagecount
FROM {message_contacts} mc
JOIN {user} u ON u.id = mc.contactid
LEFT OUTER JOIN {message} m ON m.useridfrom = mc.contactid AND m.useridto = :user1id1
WHERE mc.userid = :user1id2 AND mc.blocked = 1
GROUP BY $userfields
ORDER BY u.firstname ASC";
$rs = $DB->get_recordset_sql($blockeduserssql, array('user1id1'=>$user1->id, 'user1id2'=>$user1->id));
$blockedusers = array();
if (!empty($rs)) {
foreach($rs as $rd) {
$blockedusers[] = $rd;
if (!empty($user2) && $user2->id==$rd->id) {
$user2->isblocked = true;
}
}
unset($rd);
$rs->close();
}
return $blockedusers;
}
function message_print_blocked_users(&$blockedusers, $contactselecturl=null, $showactionlinks=true, $titletodisplay=null, $user2=null) {
global $DB, $USER;
$countblocked = count($blockedusers);
echo '<table id="message_contacts" class="boxaligncenter" cellspacing="2" cellpadding="0" border="0">';
if (!empty($titletodisplay)) {
echo "<tr><td colspan='3' class='heading'>$titletodisplay</td></tr>";
}
if ($countblocked) {
echo '<tr><td colspan="3" class="heading">';
echo get_string('blockedusers', 'message', $countblocked);
echo '</td></tr>';
foreach ($blockedusers as $blockeduser) {
message_print_contactlist_user($blockeduser, IS_NOT_CONTACT, IS_BLOCKED, $contactselecturl, $showactionlinks, $user2);
}
}
echo '</table>';
}
function message_get_contacts($user1=null, &$user2=null) {
global $DB, $CFG, $USER;
if (empty($user1)) {
$user1 = $USER;
}
if (!empty($user2)) {
$user2->iscontact = false;
}
$timetoshowusers = 300; //Seconds default
if (isset($CFG->block_online_users_timetosee)) {
$timetoshowusers = $CFG->block_online_users_timetosee * 60;
}
// time which a user is counting as being active since
$timefrom = time()-$timetoshowusers;
// people in our contactlist who are online
$onlinecontacts = array();
// people in our contactlist who are offline
$offlinecontacts = array();
// people who are not in our contactlist but have sent us a message
$strangers = array();
$userfields = user_picture::fields('u', array('lastaccess'));
// get all in our contactlist who are not blocked in our contact list
// and count messages we have waiting from each of them
$contactsql = "SELECT $userfields, COUNT(m.id) AS messagecount
FROM {message_contacts} mc
JOIN {user} u ON u.id = mc.contactid
LEFT OUTER JOIN {message} m ON m.useridfrom = mc.contactid AND m.useridto = ?
WHERE mc.userid = ? AND mc.blocked = 0
GROUP BY $userfields
ORDER BY u.firstname ASC";
if ($rs = $DB->get_recordset_sql($contactsql, array($user1->id, $user1->id))){
foreach($rs as $rd){
if($rd->lastaccess >= $timefrom){
// they have been active recently, so are counted online
$onlinecontacts[] = $rd;
}else{
$offlinecontacts[] = $rd;
}
if (!empty($user2) && $user2->id==$rd->id) {
$user2->iscontact = true;
}
}
unset($rd);
$rs->close();
}
// get messages from anyone who isn't in our contact list and count the number
// of messages we have from each of them
$strangersql = "SELECT $userfields, count(m.id) as messagecount
FROM {message} m
JOIN {user} u ON u.id = m.useridfrom
LEFT OUTER JOIN {message_contacts} mc ON mc.contactid = m.useridfrom AND mc.userid = m.useridto
WHERE mc.id IS NULL AND m.useridto = ?
GROUP BY $userfields
ORDER BY u.firstname ASC";
if($rs = $DB->get_recordset_sql($strangersql, array($USER->id))){
foreach($rs as $rd){
$strangers[] = $rd;
}
unset($rd);
$rs->close();
}
return array($onlinecontacts, $offlinecontacts, $strangers);
}
function message_print_contacts($onlinecontacts, $offlinecontacts, $strangers, $refresh=true, $contactselecturl=null, $minmessages=0, $showactionlinks=true, $titletodisplay=null, $user2=null) {
global $CFG, $PAGE, $OUTPUT;
$countonlinecontacts = count($onlinecontacts);
$countofflinecontacts = count($offlinecontacts);
$countstrangers = count($strangers);
if ($countonlinecontacts + $countofflinecontacts == 0) {
echo '<div class="heading">';
print_string('contactlistempty', 'message');
echo '</div>';
//echo '<div class="note">';
//print_string('addsomecontacts', 'message', message_remove_url_params($PAGE->url).'?tab=search');
//echo '</div>';
}
echo '<table id="message_contacts" class="boxaligncenter" cellspacing="2" cellpadding="0" border="0">';
if (!empty($titletodisplay)) {
echo "<tr><td colspan='3' class='heading'>$titletodisplay</td></tr>";
}
if($countonlinecontacts) {
/// print out list of online contacts
if (empty($titletodisplay)) {
echo '<tr><td colspan="3" class="heading">';
echo get_string('onlinecontacts', 'message', $countonlinecontacts);
echo '</td></tr>';
}
foreach ($onlinecontacts as $contact) {
if ($minmessages==0 || $contact->messagecount>=$minmessages) {
message_print_contactlist_user($contact, IS_CONTACT, IS_NOT_BLOCKED, $contactselecturl, $showactionlinks, $user2);
}
}
}
if ($countofflinecontacts) {
/// print out list of offline contacts
if (empty($titletodisplay)) {
echo '<tr><td colspan="3" class="heading">';
echo get_string('offlinecontacts', 'message', $countofflinecontacts);
echo '</td></tr>';
}
foreach ($offlinecontacts as $contact) {
if ($minmessages==0 || $contact->messagecount>=$minmessages) {
message_print_contactlist_user($contact, IS_CONTACT, IS_NOT_BLOCKED, $contactselecturl, $showactionlinks, $user2);
}
}
echo '<tr><td colspan="3"> </td></tr>';
}
/// print out list of incoming contacts
if ($countstrangers) {
echo '<tr><td colspan="3" class="heading">';
echo get_string('incomingcontacts', 'message', $countstrangers);
echo '</td></tr>';
foreach ($strangers as $stranger) {
if ($minmessages==0 || $stranger->messagecount>=$minmessages) {
message_print_contactlist_user($stranger, IS_NOT_CONTACT, IS_NOT_BLOCKED, $contactselecturl, $showactionlinks, $user2);
}
}
}
echo '</table>';
if ($countstrangers && ($countonlinecontacts + $countofflinecontacts == 0)) { // Extra help
echo '<div class="note">(';
print_string('addsomecontactsincoming', 'message');
echo ')</div>';
}
echo '<br />';
if ($refresh) {
$PAGE->requires->js_init_call('M.core_message.init_refresh_page', array(60*1000, $PAGE->url->out(false)));
echo $OUTPUT->container_start('messagejsautorefresh note center');
echo get_string('pagerefreshes', 'message', $CFG->message_contacts_refresh);
echo $OUTPUT->container_end();
echo $OUTPUT->container_start('messagejsmanualrefresh aligncenter');
echo $OUTPUT->single_button(message_remove_url_params($PAGE->url), get_string('refresh'));
echo $OUTPUT->container_end();
}
}
function message_print_usergroup_selector($usergroup, &$courses, &$coursecontexts, $countunreadtotal, $countblocked, $strunreadmessages) {
$strblockedusers = null;
$options = array();
if ($countunreadtotal>0) { //if there are unread messages
$options[VIEW_UNREAD_MESSAGES] = $strunreadmessages;
}
$strcontacts = get_string('mycontacts', 'message');
$options[VIEW_CONTACTS] = $strcontacts;
if (!empty($courses)) {
$courses_options = array();
foreach($courses as $course) {
if (has_capability('moodle/course:viewparticipants', $coursecontexts[$course->id])) {
$courses_options[VIEW_COURSE.$course->id] = $course->shortname;
}
}
if (!empty($courses_options)) {
$options[] = array(get_string('courses')=>$courses_options);
}
}
if ($countblocked>0) {
$strblockedusers = get_string('blockedusers','message', $countblocked);
$options[VIEW_BLOCKED] = $strblockedusers;
}
echo html_writer::start_tag('form', array('id'=>'usergroupform','method'=>'get','action'=>''));
echo html_writer::start_tag('fieldset');
echo html_writer::select($options, 'usergroup', $usergroup, false, array('id'=>'usergroup','onchange'=>'this.form.submit()'));
echo html_writer::end_tag('fieldset');
echo html_writer::end_tag('form');
}
function message_get_course_contexts(&$courses) {
$coursecontexts = array();
foreach($courses as $course) {
$coursecontexts[$course->id] = get_context_instance(CONTEXT_COURSE, $course->id);
}
return $coursecontexts;
}
/**
* strip off action parameters like 'removecontact'
*/
function message_remove_url_params($moodleurl) {
$newurl = new moodle_url($moodleurl);
$newurl->remove_params('addcontact','removecontact','blockcontact','unblockcontact');
return $newurl->out();
}
/// $messagearray is an array of objects
/// $field is a valid property of object
/// $value is the value $field should equal to be counted
/// if $field is empty then return count of the whole array
/// if $field is non-existent then return 0;
function message_count_messages($messagearray, $field='', $value='') {
if (!is_array($messagearray)) return 0;
if ($field == '' or empty($messagearray)) return count($messagearray);
$count = 0;
foreach ($messagearray as $message) {
$count += ($message->$field == $value) ? 1 : 0;
}
return $count;
}
/**
* Returns the count of unread messages for user. Either from a specific user or from all users.
* @global <type> $USER
* @global <type> $DB
* @param object $user1 the first user. Defaults to $USER
* @param object $user2 the second user. If null this function will count all of user 1's unread messages.
* @return int the count of $user1's unread messages
*/
function message_count_unread_messages($user1=null, $user2=null) {
global $USER, $DB;
if (empty($user1)) {
$user1 = $USER;
}
if (!empty($user2)) {
return $DB->count_records_select('message', "useridto = ? AND useridfrom = ?",
array($user1->id, $user2->id), "COUNT('id')");
} else {
return $DB->count_records_select('message', "useridto = ?",
array($user1->id), "COUNT('id')");
}
}
function message_count_blocked_users($user1=null) {
global $USER, $DB;
if (empty($user1)) {
$user1 = $USER;
}
$sql = "SELECT count(mc.id)
FROM {message_contacts} mc
WHERE mc.userid = :userid AND mc.blocked = 1";
$params = array('userid'=>$user1->id);
return $DB->count_records_sql($sql, $params);
}
/**
*
* @global <type> $USER
* @global <type> $PAGE
* @global <type> $OUTPUT
* @param boolean advancedsearch show basic or advanced search form
* @return boolean was a search performed?
*/
function message_print_search($advancedsearch = false, $user1=null) {
global $USER, $PAGE, $OUTPUT;
$frm = data_submitted();
$doingsearch = false;
if ($frm) {
$doingsearch = !empty($frm->combinedsubmit) || !empty($frm->keywords) || (!empty($frm->personsubmit) and !empty($frm->name));
}
if (!empty($frm->combinedsearch)) {
$combinedsearchstring = $frm->combinedsearch;
} else {
//$combinedsearchstring = get_string('searchcombined','message').'...';
$combinedsearchstring = '';
}
//$PAGE->requires->js_init_call('M.core_message.init_search_page', array($combinedsearchstring));
if ($doingsearch) {
if ($advancedsearch) {
$messagesearch = '';
if (!empty($frm->keywords)) {
$messagesearch = $frm->keywords;
}
$personsearch = '';
if (!empty($frm->name)) {
$personsearch = $frm->name;
}
include('search_advanced.html');
} else {
include('search.html');
}
$showicontext = false;
message_print_search_results($frm, $showicontext, $user1);
return true;
} else {
/*
/// unfinished buggy code disabled in search.html anyway
// find all courses this use has readallmessages capabilities in
if ($teachers = get_user_capability_course('moodle/site:readallmessages')) {
$courses = get_courses('all', 'c.sortorder ASC', 'c.id, c.shortname');
$cs = '<select name="courseselect">';
foreach ($teachers as $tcourse) {
$cs .= "<option value=\"$tcourse->course\">".$courses[$tcourse->id]->shortname."</option>\n";
}
$cs .= '</select>';
}
*/
if ($advancedsearch) {
$personsearch = $messagesearch = '';
include('search_advanced.html');
} else {
include('search.html');
}
return false;
}
}
function message_print_settings() {
global $USER, $OUTPUT, $PAGE;
if ($frm = data_submitted() and confirm_sesskey()) {
$pref = array();
$pref['message_beepnewmessage'] = (isset($frm->beepnewmessage)) ? '1' : '0';
$pref['message_blocknoncontacts'] = (isset($frm->blocknoncontacts)) ? '1' : '0';
set_user_preferences($pref);
redirect(message_remove_url_params($PAGE->url), get_string('settingssaved', 'message'), 1);
}
$cbbeepnewmessage = (get_user_preferences('message_beepnewmessage', 0) == '1') ? 'checked="checked"' : '';
$cbblocknoncontacts = (get_user_preferences('message_blocknoncontacts', 0) == '1') ? 'checked="checked"' : '';
include('settings.html');
}
function message_add_contact($contactid, $blocked=0) {
global $USER, $DB;
if (!$DB->record_exists('user', array('id'=>$contactid))) { // invalid userid
return false;
}
if (($contact = $DB->get_record('message_contacts', array('userid'=>$USER->id, 'contactid'=>$contactid))) !== false) {
/// record already exists - we may be changing blocking status
if ($contact->blocked !== $blocked) {
/// change to blocking status
$contact->blocked = $blocked;
return $DB->update_record('message_contacts', $contact);
} else {
/// no changes to blocking status
return true;
}
} else {
/// new contact record
unset($contact);
$contact->userid = $USER->id;
$contact->contactid = $contactid;
$contact->blocked = $blocked;
return $DB->insert_record('message_contacts', $contact, false);
}
}
function message_remove_contact($contactid) {
global $USER, $DB;
return $DB->delete_records('message_contacts', array('userid'=>$USER->id, 'contactid'=>$contactid));
}
function message_unblock_contact($contactid) {
global $USER, $DB;
return $DB->delete_records('message_contacts', array('userid'=>$USER->id, 'contactid'=>$contactid));
}
function message_block_contact($contactid) {
return message_add_contact($contactid, 1);
}
function message_get_contact($contactid) {
global $USER, $DB;
return $DB->get_record('message_contacts', array('userid'=>$USER->id, 'contactid'=>$contactid));
}
function message_print_search_results($frm, $showicontext=false, $user1=null) {
global $USER, $CFG, $DB, $OUTPUT, $PAGE;
if (empty($user1)) {
$user1 = $USER;
}
echo '<div class="mdl-left">';
$personsearch = false;
$personsearchstring = null;
if (!empty($frm->personsubmit) and !empty($frm->name)) {
$personsearch = true;
$personsearchstring = $frm->name;
} else if (!empty($frm->combinedsubmit) and !empty($frm->combinedsearch)) {
$personsearch = true;
$personsearchstring = $frm->combinedsearch;
}
/// search for person
if ($personsearch) {
if (optional_param('mycourses', 0, PARAM_BOOL)) {
$users = array();
$mycourses = enrol_get_my_courses();
foreach ($mycourses as $mycourse) {
if (is_array($susers = message_search_users($mycourse->id, $personsearchstring))) {
foreach ($susers as $suser) $users[$suser->id] = $suser;
}
}
} else {
$users = message_search_users(SITEID, $personsearchstring);
}
if (!empty($users)) {
echo html_writer::start_tag('p', array('class'=>'heading searchresultcount'));
echo get_string('userssearchresults', 'message', count($users));
echo html_writer::end_tag('p');
echo '<table class="messagesearchresults">';
foreach ($users as $user) {
if ( $user->contactlistid ) {
if ($user->blocked == 0) { /// not blocked
$strcontact = message_contact_link($user->id, 'remove', true, null, $showicontext);
$strblock = message_contact_link($user->id, 'block', true, null, $showicontext);
} else { // blocked
$strcontact = message_contact_link($user->id, 'add', true, null, $showicontext);
$strblock = message_contact_link($user->id, 'unblock', true, null, $showicontext);
}
} else {
$strcontact = message_contact_link($user->id, 'add', true, null, $showicontext);
$strblock = message_contact_link($user->id, 'block', true, null, $showicontext);
}
//should we show just the icon or icon and text?
$histicontext = 'icon';
if ($showicontext) {
$histicontext = 'both';
}
$strhistory = message_history_link($USER->id, $user->id, true, '', '', $histicontext);
echo '<tr><td class="pix">';
echo $OUTPUT->user_picture($user, array('size'=>20, 'courseid'=>SITEID));
echo '</td>';
echo '<td class="contact">';
$popupoptions = array(
'height' => MESSAGE_DISCUSSION_HEIGHT,
'width' => MESSAGE_DISCUSSION_WIDTH,
'menubar' => false,
'location' => false,
'status' => true,
'scrollbars' => true,
'resizable' => true);
$link = new moodle_url("/message/index.php?id=$user->id");
//$action = new popup_action('click', $link, "message_$user->id", $popupoptions);
$action = null;
echo $OUTPUT->action_link($link, fullname($user), $action, array('title'=>get_string('sendmessageto', 'message', fullname($user))));
echo '</td>';
echo '<td class="link">'.$strcontact.'</td>';
echo '<td class="link">'.$strblock.'</td>';
echo '<td class="link">'.$strhistory.'</td>';
echo '</tr>';
}
echo '</table>';
} else {
echo html_writer::start_tag('p', array('class'=>'heading searchresultcount'));
echo get_string('userssearchresults', 'message', 0).'<br /><br />';
echo html_writer::end_tag('p');
}
}
// search messages for keywords
$messagesearch = false;
$messagesearchstring = null;
if (!empty($frm->keywords)) {
$messagesearch = true;
$messagesearchstring = clean_text(trim($frm->keywords));
} else if (!empty($frm->combinedsubmit) and !empty($frm->combinedsearch)) {
$messagesearch = true;
$messagesearchstring = clean_text(trim($frm->combinedsearch));
}
if ($messagesearch) {
if ($messagesearchstring) {
$keywords = explode(' ', $messagesearchstring);
} else {
$keywords = array();
}
$tome = false;
$fromme = false;
$courseid = 'none';
if (empty($frm->keywordsoption)) {
$frm->keywordsoption = 'allmine';
}
switch ($frm->keywordsoption) {
case 'tome':
$tome = true;
break;
case 'fromme':
$fromme = true;
break;
case 'allmine':
$tome = true;
$fromme = true;
break;
case 'allusers':
$courseid = SITEID;
break;
case 'courseusers':
$courseid = $frm->courseid;
break;
default:
$tome = true;
$fromme = true;
}
if (($messages = message_search($keywords, $fromme, $tome, $courseid)) !== false) {
/// get a list of contacts
if (($contacts = $DB->get_records('message_contacts', array('userid'=>$USER->id), '', 'contactid, blocked') ) === false) {
$contacts = array();
}
/// print heading with number of results
echo html_writer::start_tag('p', array('class'=>'heading searchresultcount'));
$countresults = count($messages);
if ($countresults==MESSAGE_SEARCH_MAX_RESULTS) {
echo get_string('keywordssearchresultstoomany', 'message', $countresults).' ("'.s($messagesearchstring).'")';
} else {
echo get_string('keywordssearchresults', 'message', $countresults);
}
echo html_writer::end_tag('p');
/// print table headings
echo '<table class="messagesearchresults" cellspacing="0">';
$headertdstart = html_writer::start_tag('td', array('class'=>'messagesearchresultscol'));
$headertdend = html_writer::end_tag('td');
echo '<tr>';
echo $headertdstart.get_string('from').$headertdend;
echo $headertdstart.get_string('to').$headertdend;
echo $headertdstart.get_string('message', 'message').$headertdend;
echo $headertdstart.get_string('timesent', 'message').$headertdend;
echo "</tr>\n";
$blockedcount = 0;
$dateformat = get_string('strftimedatetimeshort');
$strcontext = get_string('context', 'message');
foreach ($messages as $message) {
/// ignore messages to and from blocked users unless $frm->includeblocked is set
if (!optional_param('includeblocked', 0, PARAM_BOOL) and (
( isset($contacts[$message->useridfrom]) and ($contacts[$message->useridfrom]->blocked == 1)) or
( isset($contacts[$message->useridto] ) and ($contacts[$message->useridto]->blocked == 1))
)
) {
$blockedcount ++;
continue;
}
/// load up user to record
if ($message->useridto !== $USER->id) {
$userto = $DB->get_record('user', array('id'=>$message->useridto));
$tocontact = (array_key_exists($message->useridto, $contacts) and
($contacts[$message->useridto]->blocked == 0) );
$toblocked = (array_key_exists($message->useridto, $contacts) and
($contacts[$message->useridto]->blocked == 1) );
} else {
$userto = false;
$tocontact = false;
$toblocked = false;
}
/// load up user from record
if ($message->useridfrom !== $USER->id) {
$userfrom = $DB->get_record('user', array('id'=>$message->useridfrom));
$fromcontact = (array_key_exists($message->useridfrom, $contacts) and
($contacts[$message->useridfrom]->blocked == 0) );
$fromblocked = (array_key_exists($message->useridfrom, $contacts) and
($contacts[$message->useridfrom]->blocked == 1) );
} else {
$userfrom = false;
$fromcontact = false;
$fromblocked = false;
}
/// find date string for this message
$date = usergetdate($message->timecreated);
$datestring = $date['year'].$date['mon'].$date['mday'];
/// print out message row
echo '<tr valign="top">';
echo '<td class="contact">';
message_print_user($userfrom, $fromcontact, $fromblocked, $showicontext);
echo '</td>';
echo '<td class="contact">';
message_print_user($userto, $tocontact, $toblocked, $showicontext);
echo '</td>';
echo '<td class="summary">'.message_get_fragment($message->fullmessage, $keywords);
echo '<br /><div class="link">';
//find the user involved that isn't the current user
$user2id = null;
if ($user1->id == $message->useridto) {
$user2id = $message->useridfrom;
} else {
$user2id = $message->useridto;
}
message_history_link($user1->id, $user2id, false,
$messagesearchstring, 'm'.$message->id, $strcontext);
echo '</div>';
echo '</td>';
echo '<td class="date">'.userdate($message->timecreated, $dateformat).'</td>';
echo "</tr>\n";
}
if ($blockedcount > 0) {
echo '<tr><td colspan="4" align="center">'.get_string('blockedmessages', 'message', $blockedcount).'</td></tr>';
}
echo '</table>';
} else {
echo '<p class="heading">'.get_string('keywordssearchresults', 'message', 0).'</p>';
}
}
if (!$personsearch && !$messagesearch) {
//they didn't enter any search terms
echo $OUTPUT->notification(get_string('emptysearchstring', 'message'));
}
//echo '<br />';
//echo $OUTPUT->single_button(new moodle_url($PAGE->url, array('tab' => 'search')), get_string('newsearch', 'message'));
echo '</div>';
}
function message_print_user ($user=false, $iscontact=false, $isblocked=false, $includeicontext=false) {
global $USER, $OUTPUT;
if ($user === false) {
echo $OUTPUT->user_picture($USER, array('size'=>20, 'courseid'=>SITEID));
} else {
echo $OUTPUT->user_picture($user, array('size'=>20, 'courseid'=>SITEID));
echo ' ';
$return = false;
$script = null;
if ($iscontact) {
message_contact_link($user->id, 'remove', $return, $script, $includeicontext);
} else {
message_contact_link($user->id, 'add', $return, $script, $includeicontext);
}
echo ' ';
if ($isblocked) {
message_contact_link($user->id, 'unblock', $return, $script, $includeicontext);
} else {
message_contact_link($user->id, 'block', $return, $script, $includeicontext);
}
echo '<br />';
$popupoptions = array(
'height' => MESSAGE_DISCUSSION_HEIGHT,
'width' => MESSAGE_DISCUSSION_WIDTH,
'menubar' => false,
'location' => false,
'status' => true,
'scrollbars' => true,
'resizable' => true);
$link = new moodle_url("/message/index.php?id=$user->id");
//$action = new popup_action('click', $link, "message_$user->id", $popupoptions);
$action = null;
echo $OUTPUT->action_link($link, fullname($user), $action, array('title'=>get_string('sendmessageto', 'message', fullname($user))));
}
}
/// linktype can be: add, remove, block, unblock
function message_contact_link($userid, $linktype='add', $return=false, $script=null, $text=false, $icon=true) {
global $USER, $CFG, $OUTPUT, $PAGE;
//hold onto the strings as we're probably creating a bunch of links
static $str;
if (empty($script)) {
//strip off previous action params like 'removecontact'
$script = message_remove_url_params($PAGE->url);
}
if (empty($str->blockcontact)) {
$str->blockcontact = get_string('blockcontact', 'message');
$str->unblockcontact = get_string('unblockcontact', 'message');
$str->removecontact = get_string('removecontact', 'message');
$str->addcontact = get_string('addcontact', 'message');
}
$command = $linktype.'contact';
$string = $str->{$command};
$safealttext = s($string);
$safestring = '';
if (!empty($text)) {
$safestring = $safealttext;
}
$img = '';
if ($icon) {
$iconpath = null;
switch ($linktype) {
case 'block':
$iconpath = 't/block';
break;
case 'unblock':
$iconpath = 't/userblue';
break;
case 'remove':